1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.util;
24  
25  import com.liferay.portal.kernel.util.InstancePool;
26  import com.liferay.portal.kernel.util.Validator;
27  
28  /**
29   * <a href="LayoutCloneFactory.java.html"><b><i>View Source</i></b></a>
30   *
31   * @author Brian Wing Shun Chan
32   */
33  public class LayoutCloneFactory {
34  
35      public static LayoutClone getInstance() {
36          if (_layoutClone == null) {
37              if (Validator.isNotNull(PropsValues.LAYOUT_CLONE_IMPL)) {
38                  _layoutClone = (LayoutClone)InstancePool.get(
39                      PropsValues.LAYOUT_CLONE_IMPL);
40              }
41          }
42  
43          return _layoutClone;
44      }
45  
46      private static LayoutClone _layoutClone;
47  
48  }